Switch



E. C. FINDLEY.

SWITCH.

APPLICATION FILED DEC. 15, I920.

Patented June 27; 1922.

W J J UNITED STATES ELLA c. FINDLEY, or. vIo'roRImrnIrIsn: COLUMBIA, CANADA.

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Specification of Letters Patent. Patented June 27 1922 Application filed December 15, 1920. Serial No. 430,871.

To all whom it may concern:

Be it known that I, ELLA C. FINDLEY, a citizen of the United States, residing at Victoria, in the Province of British Columbia and Dominion of Canada, have invented certain new and useful Improvements in a Switch, of which the following is a specification.

This invention relates to a switch and has for its object to provide a compound switch whereby a switch-board operator is enabled to connect all the rooms in a hotel, rooming house, boarding house, or an apartment house with one operation. Thus a signal may be given simultaneously to the occupants of the various rooms that there is a fire or some other impending danger.

A further object of the invention is to generally improve upon switches of this character by providing a device which will be extremely simple, durable and inexpensive construction, one which is efiicient and reliable in operation, and well adapted to the purpose for which it is designed.

With these and numerous other objects in view, the invention resides in certain novel features of construction, and the combina tion and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing Figure 1 is a plan view of the switch,

Figure 2 is a section taken on the line 22 of Figure 1 looking in the direction of the arrow,

Figure 3 is a section taken on the line 33 of Figure 1 looking in the direction of the arrow, and

Figure 4 is a section taken on the line H of Figure 1.

Referring to the drawing in detail it will be seen that 1 designates a stud to which is swivelly mounted a switch. The switch consists of the body 2 having a plurality of arms 3 radiating therefrom. A plurality of contact clips 4 are mounted on the arms 3 and these clips 4 are provided with a right angled extension 5 having an aperture therein so that a screw 6 may be passed therethrough for permanently attaching the contact clips to the arms 3. A plurality of contact points or terminals are suitably situated on a wall and are-arranged in series and each series will radiate from the center of the switch as is shown in the drawing. Thus upon rotation of the switch one arm will pass over each series so that the clips 4 will engage the contact points 7 and close suitable circuits to various rooms for the purpose of ringing the usual telephone bell or a like signal. One of the arms 3 is preferably made longer than the remaining arms and is provided at its terminal with a knife switch 8 which is adapted to engage the switch clip 9 so that a circuit may be closed to a gong or some other audible signal placed in the building. This knife switch formed by the members 8 and 9 is an auxiliary switch.

An eye 10 is preferably placed upon the terminal of the last mentioned arm 3 and a rod 11 is loosely attached thereto. A support 12 having an eye 13 thereon is provided for receiving the rod 11 and a washer 14 is mounted upon the end of the rod 11 so that a coil spring 15 may be disposed between the washer 14 and the eye 13 thus the spring will be compressed when the switch is rotated in a counter-clockwise direction and will normally have a tendency to place the switch in a closed position. A suitable stop plug 16 is mounted in an aperture or opening in the wall and will engage one of the arms 3 so as to hold the switch in an open position as shown in Figure 1. A permanent stop 18 is situated a short distance therefrom and will prevent the switch from rotating too far. Thus it will be seen that if the plug 16 is removed the spring 15 will force the switch to a closed position.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the switch will be readily understood without a more extended explanation. As numerous changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit of the invention, I do not wish to be limited to the construction herein shown and dethe rod for closing the switch upon removal 10 scribed other than as claimed. of the stop means.

Having thus described my invention what In testimony whereof I afiix my signature I iaim as new is b d in presence of two witnesses.

rotary switc comprising a 0 y, arms radiating therefrom contacts on the arms, ELLA FINDLEY' stationary contacts, stop means for holding Witnesses: the switch in an open position a rod loosely M. E. MALIGE,

mounted on one of the arms, a coil spring on EDMOND HUESTIS. 

